561

Users Manual

Table 2. Surface Emissivity

Measured

Switch Setting

Surface

 

Aluminum

 

Oxidized

Low

Alloy A3003

 

Oxidized

Low

Roughened

Low

Brass

 

Burnished

Low

Oxidized

Low

Copper

 

Oxidized

Medium

Electrical Terminal

Medium

Blocks

 

Haynes

 

Alloy

Medium

Inconel

 

Oxidized

High, Medium

Sandblasted

Medium

Electoropolished

Low

Iron

 

Oxidized

High, Medium

Rusted

Medium

 

 

Measured

Switch Setting

Surface

 

Iron, Cast

 

Oxidized

High, Medium

Unoxidized

Low

Molten

Low

Iron, Wrought

 

Dull

High

Lead

 

Rough

Low

Oxidized

Low, Medium

Molybdenum

 

Oxidized

Low, Medium

 

 

Nickel

 

Oxidized

Low

Platinum

 

Black

High

Steel

 

Cold-Rolled

High

Ground Sheet

Medium

Polished Sheet

Low

Zinc

 

Oxidized

Low

 

 

Switching Between °C and °F

Open the battery compartment and locate the switch positioned between the left side of the battery near the Thermometer wall. To toggle between °C and °F, use a small screwdriver or paper clip to move the switch to the desired position. See Figure 7.

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Image 12
Fluke 561s user manual Switching Between C and F